@chief - I might be wrong but like that document might says that Jeet's training is done and now, his job is started.
The real thing which the movie shows us is that Teg was waiting for her father (who was also a soldier) that he will come back and get her with him, taking care of her and all that as in the last scene, Teg was saying that her aunt gave everything but she did not get love from her aunt. So, Teg requested to marry Jeet who is also a soldier at that time.
Hope, your doubt is clear now.